We saw a strange violin ringup that was first seen in the DCPD windows and by the 500 Hz line growing, we found that ETMX 1, and 6 were ringing up. They're both at 511 Hz, as they were "anti-damping" the DCPDs were growing untill GRD finally turned them off. The monitors weren't showing much of an increase but the outputs were clearly diverging. Once the damping was turned off, the monitors grew. The damping and monitor filters for EX 1 & 6 are both 4th order.